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Dadan Dasari

Univeritas Pendidikan Indonesia

Author-ID : 2838049

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Desain Didaktis Pembelajaran Matematika untuk Mengatasi Learning Obstacles Siswa SMP dalam Mempelajari Materi Aljabar Lia Ardiansari; Didi Suryadi; Dadan Dasari
JNPM (Jurnal Nasional Pendidikan Matematika) Vol 7, No 1 (2023)
Publisher : Universitas Swadaya Gunung Djati

Abstrak. Penelitian ini dilatarbelakangi oleh banyaknya siswa SMP yang mengalami hambatan belajar (learning obstacle) pada saat mempelajari aljabar. Penelitian desain didaktis (didactial design research) digunakan dalam penelitian ini yang diawali dengan studi pendahuluan untuk mendapatkan data learning obstacle di enam kelas pada tiga SMP dengan kluster yang berbeda-beda. Tujuan dari penelitian ini yaitu menghasilkan suatu desain pembelajaran yang diharapkan dapat meminimalkan learning obstacles yang ditemukan. Terdapat tiga kategori learning obstacle yang ditemukan yaitu ontogenic obstacle, didactical obstacle, dan epistemological obstacle sebelum bahan ajar dibuat. Desain didaktis yang ditawarkan berdasarkan hasil studi pendahuluan tersebut disusun dengan tahapan dimulai dari pemberian konsep awal secara aritmatika, trajectory (penghubung) yaitu tahap pra-aljabar, kemudian konsep akhir aljabar secara formal. Hasil dari penelitian ini merupakan hasil uji coba terbatas kepada 28 siswa kelas VII SMP dimana siswa memberikan tanggapan positif terhadap desain didaktis yang dikembangkan.Kata Kunci: Aljabar, Penelitian Desain Didaktis, Hambatan Belajar.

Analisis Pengetahuan Konseptual dan Prosedural Mahasiswa Calon Guru Sekolah Dasar Pada Bilangan Rasional Rita Novita; Tatang Herman; Didi Suryadi; Dadan Dasari; Mulia Putra; Rahmat Fitra
JNPM (Jurnal Nasional Pendidikan Matematika) Vol 6, No 2 (2022)
Publisher : Universitas Swadaya Gunung Djati

Penelitian ini bertujuan untuk mendeskripsikan pemahaman bilangan rasional mahasiswa calon guru sekolah dasar yang berkaitan dengan pengetahuan procedural dan konseptual. Metode kualitatif deskriptif digunakan dalam penelitian ini untuk mencapai tujuan yang telah ditetapkan. Penelitian ini melibatkan 102 mahasiswa pendidikan guru sekolah dasar tahun kedua pada dua perguruan tinggi swasta di Aceh, Indonesia. Pengumpulan data dilakukan dengan menggunakna tes tertulis yang berkaitan dengan bilangan rasional. Analisis data dilakukan secara deskripstif dengan cara mereduksi data, menyajikan data, dan menarik kesimpulan. Hasil penelitian menunjukkan bahwa pengetahuan mahasiswa calon guru sekolah dasar baik pengetahuan procedural dan konseptual pada bilangan rasional masih sangat terbatas. Secara kategorisasi, pengetahuan procedural mahasiswa tergolong dalam level moderate (70,05%) sedangkan pengetahuan konseptual (50,36%) masih berada pada level rendah. Berbagai bentuk miskonsepsi dan kesulitan (epistemological obstacles) masih dialami oleh mahasiswa dalam menyelesaikan masalah terkait dengan kedua pengetahuan ini. Interpretasi bilangan rasional dalam representasi pecahan dan decimal perlu menjadi focus dalam ruang kuliah matematika pada program Pendidikan guru sekolah dasar. Selain itu, penelitian ini juga mendukung penguatan pengetahuan konseptual melebihi pengetahuan procedural ditekankan pada mahasiswa calon guru sekolah dasar.

Mathematical Reasoning Abilities During Pandemic Covid-19 : Literature Riview Yani Astika Lomri; Dadan Dasari
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 12, No 2 (2023)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/ajpm.v12i2.7309

Tujuan dari artikel ini adalah untuk mendeskripsikan profil kemampuan penalaran matematis siswa pada masa pandemi Covid-19. Penalaran matematis merupakan aspek penting dalam pembelajaran matematika, terutama di abad 21. Dengan menggunakan kemampuan penalaran yang memadai, siswa dapat menjadi komunikator yang cakap dan mempertahankan argument dengan penalaran dan pembuktiannya dalam berbagai konteks kehidupan sehari-hari. Metode yang digunakan dalam artikel ini adalah literature review dengan focus pada pengalaman empiris yang dipublikasikan di ERIC, Google Scholar and Crossref. Hasil penelitian menunjukkan terdapat 26 artikel mengenai kemampuan penalaran matematis siswa pada masa pandemi Covid-19 diterbitkan pada tahun 2020-2022. Artikel yang terhimpun menggunakan metode penelitian kuantitatif, kualitatif, dan mixed method. Artikel berasal dari negara yang berbeda dan didominasi oleh Indonesia dengan subjek penelitian dari jenjang SD, SMP, SMA, Kuliah, dan Guru. Adapun konten matematika yang digunakan lebih banyak mempelajari geometri. Profil kemampuan penalaran matematis pada masa pandemic Covid-19 yaitu siswa dengan kemampuan penalaran tinggi dapat memenuhi semua indikator penalaran dengan baik dan menyelesaikan semua soal dengan benar. Siswa dengan kemampuan penalaran sedang mampu memenuhi indikator mengajukan dugaan, mengumpulkan bukti, dan memberikan alasan. Siswa dengan kemampuan penalaran rendah hanya memenuhi indikator penyajian pernyataan matematis dengan baik dan tidak dapat menyelesaikan semua soal dengan benar. The purpose of this article is to describe the profile of students’ mathematical reasoning abilities during the COVID-19 pandemic. Mathematical reasoning is an important aspect of learning mathematics, especially in the 21st century. By using adequate reasoning abilities, students can become proficient communicators and defend arguments using their reasoning and proofs in various contexts of everyday life. The method used in this article is literature review with a focus on empirical experience published in ERIC, Google Scholar and Crossref. The results showed that there were 26 articles on students’ mathematical reasoning abilities during the Covid-19 pandemic published in 2020-2022. The articles included used quantitative, qualitative, and mixed methods. Each article came from a different country and was dominated by Indonesia with research subjects from elementary, secondary, high school, college, and teacher levels. The mathematical content used is mostly for studying geometry. The profile of mathematical reasoning abilities during the Covid-19 pandemic, namely students with high reasoning abilities were able to fulfill all reasoning indicators well and solve all questions correctly. Students with moderate reasoning abilities are able to meet the indicators of submitting conjectures, collecting evidence, and providing reasons. Students with low reasoning abilities only meet the indicators of presenting mathematical statements properly and cannot solve all the questions correctly.

KEMAMPUAN PROBABILISTIC THINKING PESERTA DIDIK SMP DALAM MATERI PELUANG Atika Defita Sari; Dadan Dasari; Nanang Priatna; Tatang Herman
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 12, No 2 (2023)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/ajpm.v12i2.6545

Kemampuan probabilistic thinking merupakan kemampuan siswa berpikir dalam menanggapi berbagai masalah probabilistik. Masalah probabilistik merupakan masalah yang mengandung ketidakpastian. Penelitian ini bertujuan untuk mendeskripsikan tingkat kemampuan probabilistic thinking siswa berdasarkan KMS dan ditinjau melalui tiga konstruksi. Subjek penelitian ini merupakan siswa SMP kelas IX yang telah mempelajari materi peluang. Penelitian ini merupakan penelitian kualitatif deskriptif yang menggunakan metode studi kasus. Pada penelitian ini diperoleh bahwa siswa dengan KMS rendah memiliki tingkat probabilistic thingking pada level 1-3 yang cenderung masih menggunakan pemikiran subjektif dalam menjawab permasalahan probabilistik, berbeda dengan siswa yang memiliki KMS sedang dan tinggi sudah mulai menggunakan pendekatan kuantitatif. Sehingga, level probabilistic thinking siswa beragam tergantung KMS, pengalaman dan penggunaan bahasa.

A Literature Review of Indonesian Students' Mathematical Communication Ability in Geometry Materials Rayinda Khaerul Wiladah Bahrun; Dadan Dasari
EduLine: Journal of Education and Learning Innovation Vol. 3 No. 3 (2023)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.eduline1880

The purpose of this study is to identify and examine students' written mathematical communication skills in geometry subject over the last five years. This study is a literature review that was conducted by looking for and assessing similar previous studies. Several stages were completed in this research: (1) identifying articles that discussed communication skills in geometry material, (2) analyzing student mathematical communication abilities in working geometry questions, and (3) identifying similarities in mathematical communication inhibiting factors. According to the findings of the study's six articles, pupils had difficulties articulating ideas, mathematical circumstances in writing with visuals, and algebra, expressing ideas or mathematical situations in everyday life in algebraic form. Students' mathematical communication abilities have not achieved their full potential. Of course, there are numerous elements that influence this, including pupils' lack of desire to describe or comprehend the challenges or problems they confront. Students do not understand the fundamental principles involved in answering these questions. Some pupils also do not understand the context of the questions, resulting in carelessness factor in communicating it mathematically.

Meningkatkan Kemampuan Pemahaman Matematis dengan Menggunakan Model Pembelajaran Arias Eka Khairani Hasibuan; Jozua Sabandar; Dadan Dasari
SIGMA DIDAKTIKA: Jurnal Pendidikan Matematika Vol 4, No 1 (2016)
Publisher : SIGMA DIDAKTIKA: Jurnal Pendidikan Matematika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/sigmadidaktika.v4i1.31980

Abstrak. Penelitian ini bertujuan untuk mengkaji pengaruh model pembelajaran ARIAS (Assurance Relevance Interest Assessment Satisfaction) terhadap peningkatan kemampuan pemahaman matematis. Desain penelitian yang digunakan adalah nonequivalent pre-test and post control group design. Populasinya, yaitu seluruh siswa SMP kelas VII di salah satu SMP Negeri di Bandung. Adapun sampelnya terdiri dari 37 siswa kelas ARIAS (kelompok eksperimen) dan 35 siswa kelas konvensional (kelompok kontrol). Masalah yang diteliti yaitu peningkatan kemampuan pemahaman matematis siswa. Analisis kuantitatif menggunakan independent sample t-test, Mann-Whitney test, sedangkan analisis kualitatif dilakukan secara deskriptif. Hasil penelitian menunjukkan peningkatan kemampuan pemahaman matematis siswa yang memperoleh model pembelajaran ARIAS lebih baik daripada siswa yang memperoleh pembelajaran konvensional. Abstract. The aims of this research are intended to examine the effect of ARIAS learning model toward the increase of student’s mathematical understanding ability. The research utilized nonequivalent pre-test and post control group design. The population of this research are students of grade seven from one junior high school in Bandung. As concern, the sample comprised of 37 students in ARIAS class (experiment group) and 35 students in conventional class (control group). The research problem are to improve mathematical understanding ability. The quantitative analysis is used independent sample t-test, Mann-Whitney test, while qualitative analysis is used descriptive one. The result shows better increasing mathematical understanding ability by using ARIAS learning model than by using conventional teaching.

Pengaruh Gaya Belajar Terhadap Kemampuan Pemecahan Masalah Matematik Siswa pada Materi Relasi dan Fungsi Solehudin Solehudin; Dadan Dasari
Gunung Djati Conference Series Vol. 32 (2023): The 5th Conference Series Learning Class: Religious Study, Language, and Education
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Students' Understanding of The Equal Sign Based on Their Learning Experience in Arithmetic Lia Ardiansari; Didi Suryadi; Dadan Dasari
Kreano, Jurnal Matematika Kreatif-Inovatif Vol 14, No 1 (2023): Kreano, Jurnal Matematika Kreatif-Inovatif
Publisher : Mathematics Dept, Math. and Science Faculty, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/kreano.v14i1.40930

The equal sign is an important concept in learning mathematics karena it is used in almost all branches of mathematics, but not many studies in Indonesia have made the equal sign the focus of research. This study aims to explore how students from elementary school to college students understand the equal sign in the context of arithmetic and algebra at school. A qualitative comparative analysis can be used to analyze several cases in complex situations so that it fits the purpose of this study. Participants consisted of 6 elementary school students, 14 junior high school students, 7 high school students and 3 college students in Bandung. The results of the study indicate that the equal sign is still interpreted narrowly as "result" or a sign to put the Menjawab, and has dependence on computational methods in solving problems and drawing conclusions. Thus, it can be concluded that students' understanding of the equal sign is still at the basic level. The results of this study show evidence that the operational meaning of the equal sign that students have when learning arithmetic will not change by itself without the stimulus provided by the teacher, and even tends to cause obstacles when students learn equations in algebra.Tanda sama dengan merupakan konsep penting dalam pembelajaran matematika karena digunakan pada hampir seluruh cabang matematika, namun belum banyak penelitian di Indonesia yang menjadikan tanda sama dengan sebagai fokus penelitian. Penelitian ini bertujuan untuk mengeksplorasi bagaimana para siswa dari mulai sekolah dasar hingga mahasiswa memahami tanda sama dengan dalam konteks aritmatika dan aljabar di sekolah. A qualitative comparative analysis dapat digunakan untuk menganalisis beberapa kasus dalam situasi yang kompleks sehingga sesuai dengan tujuan penelitian ini. Partisipan terdiri dari 6 siswa SD, 14 siswa SMP, 7 siswa SMA dan 3 Mahasiswa di Bandung. Hasil penelitian menunjukkan bahwa tanda sama dengan masih dimaknai secara sempit yaitu sebagai “menghasilkan” atau tanda untuk meletakkan jawaban, serta memiliki kebergantungan terhadap metode komputasi dalam menyelesaikan masalah dan mengambil kesimpulan. Dengan demikian, dapat disimpulkan bahwa pemahaman siswa tentang tanda sama dengan masih berada di tingkat dasar.

Analisis Klasifikasi K-Means Terhadap Pemahaman Konsep dan Self-Efficacy: Menjelajahi Hubungan dalam Konteks Pendidikan Magdalena Wangge; Dadan Dasari; Turmudi Turmudi
Jurnal Matematika, Statistika dan Komputasi Vol. 20 No. 2 (2024): JANUARY 2024
Publisher : Department of Mathematics, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/j.v20i2.32099

Concept understanding and self-efficacy are two important aspects of mathematics learning that are interrelated. However, there is still debate about the relationship between these two aspects in the context of mathematics learning. Therefore, this study was conducted to analyze the classification of concept understanding and self-efficacy using K-means clustering with a sample of grade VIII students from three selected schools in Wolowaru District and Kelimutu District, Ende Regency, NTT. Data were collected through concept understanding test and self-efficacy questionnaire. The results showed that students' concept understanding and self-efficacy belonged to the medium and low classes. However, there was a practically insignificant correlation between the two aspects. The implication is the importance of developing learning strategies that can improve students' concept understanding and self-efficacy in the context of mathematics education.

Analisis Regresi Ordinal Faktor-Faktor yang Mempengaruhi Capaian Literasi Matematika SMP dan SMA di Kabupaten Manggarai Barat Patrisius Afrisno Udil; Dadan Dasari; Elah Nurlaelah
Jurnal Matematika, Statistika dan Komputasi Vol. 20 No. 2 (2024): JANUARY 2024
Publisher : Department of Mathematics, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/j.v20i2.32118

This study aims to analyze the significant factors that affect mathematics literacy achievement, especially in junior and senior high schools in West Manggarai Regency. It begins by presenting descriptive information regarding mathematics literacy achievement at junior and senior high schools in West Manggarai Regency, especially in relation to other factors measured in the national assessment. This study is a quantitative study. The data analyzed were secondary data obtained from the Education, Youth and Sports Office of West Manggarai Regency in the form of Education Report. The analysis was carried out descriptively first, then analyzed with ordinal logistic regression. The results showed that the achievement of mathematics literacy at junior and senior high schools in West Manggarai Regency is still not optimal, both in general and in terms of each factor. The results of this study also show that the factors that significantly influence the achievement of mathematical literacy at junior and senior high schools in West Manggarai Regency include the level of the education unit, increased of learning quality score, increased of instructional leadership score, and increased of the algebraic content score.

Co-Authors Aan Hasanah Abdul Wahab A Abdurrahman do muhamad Naser Abdurrahman Do. Muhamad Naser Agus Hendriyanto Ahmad Lutfi AHMAD LUTFI Ahmad Mukhibin Ahmad Mukhibin, Ahmad Alliseu Umiyati Ambarwati, Dela Ariyanti Jalal Aswin Aswin Atika Defita Sari Bahar, Afipa Amalia bambang avip Priatna Budi Rianto Christina Monika Christina Monika Samosir Cut Nadia Rachmi Dadang Juandi Dadang Juandi Dadang Juandi Dadang Junadi Dameria Elisabeth Simanjuntak Darhim Darhim Dela Ambarwati Desy Lusiyana, Desy Dewi, Niken Shofiana Didi Suryadi Didi Suryadi Didi Suryadi Didi Suryadi Didi Suryadi Didi Suryadi Didi Suryadi Dika Faiz Himmawan Diki Mulyana Drajat, Widi Rahmawati Edi Supriyadi Eka Khairani Hasibuan Elah Nurlaelah Elah Nurlaelah Elsa Komala Elsa Komala, Elsa Endang Cahya Mulyaning Asih Enjun Junaeti Erika Yohanna Seventina Siahaan Eyus Sudihartinih Fadhil Zil Ikram Fatimah, Siti Fatmiyati, Novita Febrianti, Tri Sedya Febrinna Marchy Fitri, Rahmia Mulya Fitria Maghfiroh, Fitria Fitria, Nida Fitriani agustina Fitriasari, Putri Fitriyah, Yuni Freddy Prasetyo Freddy Prasetyo, Freddy Gita Rani Putri Mangiri Gita Safitri Gunadi, Farid Hafilah, Putri Harahap, Maulana Al Aziz Hasya Nur Auliya Hendriyanto, Agus Hidayat, Azhar Majid Himmawan, Dika Faiz Husna Fatwana Ilham Muhammad Ilham Muhammad Inayah, Clara fadhilah Inayah, Sarah Jajang Rahmatudin Jarnawi Afgani Dahlan Jarnawi Afgani Dahlan Jozua Sabandar Kakoma Luneta Khofifa Romaito Siregar Laia, Harun Onesimus Lethulur, Nelma Dortje Lia Ardiansari Lia Arista Lina Nurhayati Lomri, Yani Astika Lubis, Asep Ridwan Lucky Heriyanti Jufri, Lucky Heriyanti Luhur Bayuaji, Luhur Lukman hakim muhaimin Lukman Lukman Lutfi, Jasmine Salsabila Luthfiyati Nurafifah Ma'ulfi Kharis Abadi Magdalena Wangge Mansyur, Azizul Jabbar Marchy, Febrinna Mardliyah, Syifa Marhami Marhami Marhami, Marhami Maria Stella Yosefina Galus Maria TSN Ma’ulfi Kharis Abadi Mitrayana - Mufarrido Husnah Muhaimin, Lukman Hakim Muhammad Fajar Anugrah Mulia Putra N. Nurjanah Nadyati Putri Nanang Priatna Nar Herrhyanto Naser, Abdurrahman Do. Muhamad Neza Zakiya Arili ningrum, yunia jumita Nisa Azzahra Nora Susilowaty Novita Fatmiyati Nurafni Nurdiani, Nunung Nurdiani, Nunung Nurhayati, Hanifah Nurhayati, Lina Pahmi, Samsul Palupi Sri Wijayanti Palupi Sri Wijayanti, Palupi Sri Panjaitan, M. Azhari Patrisius Afrisno Udil, Patrisius Afrisno Pieter Zakarias Tupamahu Pujia Siti Balkist Putri, Mei Radia Rafi Kamindra Rahma Adinda Sartika Rahmat Fitra Rahmat Kusharyadi Raisya Hizkiya Syabina Ramdhan Fazrianto Suwarman Rani Sugiarni Rasilah Rasilah Rasilah, Rasilah Rayinda Khaerul Wiladah Bahrun Rianto, Budi Ridho, Muhamat Hidayatul Riki Andriatna Rita Novita Ritmayanti, Indah Rahmania Rizqi Dwi Maharani Rusyid, Husnul Khatimah Saffanah Pertiwi Safitri, Gina safitri, gita Samosir, Christina Monika Sani Sahara Saputra, Andari Saputri, Veni Sari, Atika Defita Sari, Merisa Ammelia Savitri, Gina Scristia, Scristia Shafa Salsabila sholikhakh, Rizqi Amaliyakh Siahaan, Erika Yohanna Seventina Silitonga, R. H. Yanti Simanjuntak, Sinitta Simbolon, Asep Siswanto, Rizki Dwi Siti Fatimah Solehudin Solehudin Sri Hastuti Noer Sri Yulianti Sufyani Prabawanto, Sufyani Surya Kurniawan Swasti Maharani, Swasti Syafdi Maizora Syafdi Maizora Syaiful Syifa Mardliyah Syufyani Prabawanto Tarmudi, Tarmudi Tatang Herman, Tatang Tia Purniati Tri Nova Hasti Yunianta Trysa Gustya Manda Turmudi Tuti Hartati Wahab A, Abdul Wangge, Magdalena Widyastuti Widyastuti Yani Astika Lomri Yaya S Kusumah Yaya S. Kusumah Yaya S. Kusumah Yaya S. Kusumah Yaya Sukjaya Kusuma Yaya Sukjaya Kusumah Yuce Sandra Yuni Fitriyah Yunia Jumita Ningrum

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